Elk Master Tips, Master Blue Chalk for the past 50 years, and most recently, their rubber covered metal grip chalk holders on a string, which I saw for the first time this year, are absolutely as advertised! I do not like chalk falling onto the cloth, moving around on or staying on the rails, or falling on the floor. Perhaps a petty issue to many, but these chalk holders , which are on each side of my home table, and around my pool room, allow me to chalk as "lip stick fashion" and do not sink into the metal grip inside. The soft rubber ones previously used required pulling chalk out of the holder for EVERY SHOT- no longer, thank you , Tweeten Fibre Company!